// 云函数入口文件
const cloud = require('wx-server-sdk');

cloud.init();

const db = cloud.database();

// 云函数入口函数
exports.main = async (event, context) => {
  try{
    return await db.collection('needleLevel').limit(100).get();
  }catch(e){
    console.log(e)
  }
}